Which Example Shows the Most Effective Approach to Teacher-Family Relations

Which example shows the most effective approach to teacher-family relations?

A) If a child refuses to take naps, the teacher should tell the family to wake him up sooner in the morning.
B) If a child has toilet accidents, the teacher should emphasize to the family that this inconveniences the school.
C) If a child drinks coffee provided by his parents, the teacher should insist that the family not do this.
D) If a child has eating problems, the teacher should share the school's dietary approach with the family.